Many Memories (B)

Put this card into your memory.
Choose up to 2 characters with "Mai" in their card names in your waiting room, return them to your hand, choose 1 card in your hand, and put it into your waiting room.
[(1)] If your waiting room has 6 or more climax with [COME BACK] in its trigger icon, you may pay the cost. If you do, return all cards from your waiting room to your deck, shuffle your deck, draw 1 card, choose 1 card in your hand, and put it into your waiting room.